Hello writers try this:
You Write On: http://www.youwriteon.com/
I joined youwriteon some months ago and have reviewed a number of short stories and excerpts from novels and received reviews of mine in return.
The responses were honest, constructive and motivating.
You also have the chance to see how fellow writers are structuring their work.
'YouWriteOn began in 2006 to assist new writers to develop their writing. Editors for leading publishers such as Random House and Orion review our highest rated writers each month.
YouWriteOn's premise is simple: members upload opening chapters or short stories and the YouWriteOn system randomly assigns these to another member to review. You then review another member's story excerpt ... each time you want to receive a new review back in return. After 5 reviews a story enters our chart system - the highest rated writers receive free feedback each month from editors for leading publishers Orion and Random House.'
See my Links to click onto youwriteon.